16126306505 has 32 divisors (see below), whose sum is σ = 20667312000. Its totient is φ = 12037358592.

The previous prime is 16126306489. The next prime is 16126306531. The reversal of 16126306505 is 50560362161.

16126306505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16126306505 - 2⁴ = 16126306489 is a prime.

It is a super-4 number, since 4×16126306505⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9358574 + ... + 9360296.

It is an arithmetic number, because the mean of its divisors is an integer number (645853500).

Almost surely, 2^16126306505 is an apocalyptic number.

It is an amenable number.

16126306505 is a deficient number, since it is larger than the sum of its proper divisors (4541005495).

16126306505 is a wasteful number, since it uses less digits than its factorization.

16126306505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 16126306505 its reverse (50560362161), we get a palindrome (66686668666).

The spelling of 16126306505 in words is "sixteen billion, one hundred twenty-six million, three hundred six thousand, five hundred five".